<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <!-- 帮我写一个登录窗口 -->
    <div class="login-box">
        <div class="login-title">登录</div>
        <div class="login-form">
            <div class="login-item">
                <label for="username">用户名</label>
                <input type="text" id="username">
            </div>
            <div class="login-item">
                <label for="password">密码</label>
                <input type="password" id="password">
            </div>
            <div class="login-item">
                <button>登录!!!!!!!</button>
            </div>
        </div>
    </div>
    </div>
    </div>
</body>

</html>